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//
// ActiveDispatcherTest.cpp
//
// Created by Setsu on 4/21/10.
// Copyright 2010 RoundSquare Inc. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
//----------------------------------------
// include
//----------------------------------------
#include <Poco/Logger.h>
#include <Poco/PatternFormatter.h>
#include <Poco/FormattingChannel.h>
#include <Poco/ConsoleChannel.h>
#include <Poco/ActiveMethod.h>
#include <Poco/ActiveDispatcher.h>
#include <Poco/ActiveResult.h>
#include <Poco/Format.h>
#include <Poco/Random.h>
#include <deque>
#include "ScopedLogMessage.h"
//----------------------------------------
// MultiplierData
//----------------------------------------
struct MultiplierData
{
int threadID;
int callCount;
std::pair<int, int> source;
int result;
MultiplierData()
{
threadID = 0;
callCount = 0;
source.first = 0;
source.second = 0;
result = 0;
}
};
//----------------------------------------
// ActiveMultiplierDispatcher
// uses ActiveDispatcher
//----------------------------------------
class ActiveMultiplierDispatcher : public Poco::ActiveDispatcher
{
public:
ActiveMultiplierDispatcher() :
multiply(this, &ActiveMultiplierDispatcher::multiplyImpl)
, m_callCount(0)
, m_msg(" ActiveMultiplierDispatcher ", "start", "end")
{
}
Poco::ActiveMethod<MultiplierData, MultiplierData,
ActiveMultiplierDispatcher, Poco::ActiveStarter<Poco::ActiveDispatcher> > multiply;
protected:
// Single Threaded Execution pattern
MultiplierData multiplyImpl(const MultiplierData& args)
{
ScopedLogMessage msg(" ActiveMultiplierDispatcher::multiplyImpl ", "start", "end");
++m_callCount;
msg.Message( Poco::format(" ActiveMultiplierDispatcher::multiply(%d*%d) invoked from thread[%d] [callCount=%d]"
, args.source.first
, args.source.second
, args.threadID
, m_callCount) );
// simulate time consuming job
Poco::Thread::sleep(500); // 500mSec
MultiplierData rtn = args;
rtn.callCount = m_callCount;
rtn.result = args.source.first * args.source.second;
return rtn;
}
int m_callCount;
ScopedLogMessage m_msg;
};
//----------------------------------------
// PrepareMultiplierData
//----------------------------------------
MultiplierData PrepareMultiplierData(Poco::Random& random)
{
MultiplierData data;
Poco::Thread* p_thread = Poco::Thread::current();
data.threadID = (0 == p_thread) ? 0:p_thread->id();
data.source.first = std::abs(random.nextChar() % 10);
data.source.second = std::abs(random.nextChar() % 10);
return data;
}
//----------------------------------------
// PrepareConsoleLogger
//----------------------------------------
void PrepareConsoleLogger(const std::string& name, int level=Poco::Message::PRIO_INFORMATION)
{
Poco::FormattingChannel* pFCConsole = new Poco::FormattingChannel(new Poco::PatternFormatter("%t"));
pFCConsole->setChannel(new Poco::ConsoleChannel);
pFCConsole->open();
Poco::Logger::create(name, pFCConsole, level);
}
//----------------------------------------
// main
//----------------------------------------
int main(int /*argc*/, char** /*argv*/)
{
PrepareConsoleLogger(Poco::Logger::ROOT, Poco::Message::PRIO_INFORMATION);
ScopedLogMessage msg("ActiveDispatcherTest ", "start", "end");
Poco::Random random;
std::deque< Poco::ActiveResult<MultiplierData> > activeResults;
ActiveMultiplierDispatcher multiplier;
const int kNumMutiplier = 2;
for(int i=0; i<kNumMutiplier; ++i)
{
// Future pattern
activeResults.push_back(multiplier.multiply(PrepareMultiplierData(random)));
}
// some other task can be done here
msg.Message(" doing something...");
while(0 != activeResults.size())
{
Poco::ActiveResult<MultiplierData>& result = activeResults.front();
result.wait();
msg.Message( Poco::format(" ActiveMultiplierDispatcher::multiply(%d*%d) result=%d [callCount=%d]"
, result.data().source.first
, result.data().source.second
, result.data().result
, result.data().callCount) );
activeResults.pop_front();
}
return 0;
} |
